Steam supeeheatee



(No Model.) A 2 Sheets-Sheet I.

M. GRO SS.

STEAM SUPERHBATBR.

No. 284,958. Patented 88111.11, 1888.

WHNESSES: INVENTOR: C/f 7' 0 i BY ATTORNEYS.

N. PETERS. Fnnmmnugmpher. washingmn. D. C.

(No Model.) 2 Sheets-Sheet 2.

M. GROSS.

STEAM SUPERHBATER. No. 284,958. Patented Sept. 11, 1883.

ATTORNEYS.

NITRD STATES MAGNUS GROss, or NRW YORK, N. v.

STEAM-SUPERHEATER.

SPEOIFICATlON forming part of Letters Patent No. 284,958, dated September-11, 1883 Application filed February 23, 1883. (No model.)

T0 all whom it may concern/ Be it known that I, MAGNUs GRoss, of the city, county, and State of New York, have invented a new andA useful Improvement in Steam-Superheaters, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a sectional side elevation of the superheater. Fig. 2 is a sectional end elevation of the same. tional view of the furnace and superhcater, showing their relation to e'ach other; and Fig. 4 is a cross-section of the same.

Vhenever steam is used for the purpose of decomposition, and the combination of its elements-hydrogen and oxygen-with other gaseous bodies, or in the manufacture of watergas, the great hinderance to any such operation lies in the fact that the steam, in passing through retorts, generators, or other apparatus constructed for such purposes, quickly lowers the heat required for the safe conduction of such processes, rendering them intermittent and unreliable, instead of constant and uniform, as they ought to be.

In connection with the apparatus and process for making gas from naphtha or other liquid hydrocarbons 'described in Letters Pat ent No. 206, 7 2l, granted to me August 6, 1878, and for the purpose of rendering the said process more perfect, Ihave devised a superheater which meets the requirements and avoids the difficulties hereinbefore mentioned as attending the use of superheated steam.

In the manufacture of gas, in every bench A, which should have not less ythan four and may contain as many as nine generating or distilling retorts B, is inserted an additional retort, C, for 'the purpose of housing the superheater. The forward part of the retort O rests upon a double wall, D E, and never becomes very hot. The rear part of the retort G rests upon the rear wall, F, of the bench, and upon a partition-wall, G, placed at a little distance from the rear wall, F, and forming a chamber through which the products of combustion are to pass from the main or furnace chamber B to the chimney, and with which the interior of the retort C communicates by means of an opening, II, so that all rareed and highly-heated air, spent firegases, or vapors in the superheating-retort C Fig. 3 isa longitudinal secy pass into the hot-air chamber, and thence to the chimney.- By this'construction an even and uniform tension is maintained in the superheater, and at the same time the possibility of avacuum is avoided. On the bottom of the retort C are placed four or five rows of distances apart, and which are covered and the spaces between them are iilled to the depth of several inches with pulverized iire-clay J, the object being to providea shield to protect the superheating-pipes from contact with the bottom of the retort. The retort is now ready to receive the .superheater proper, which is constructed as follows: From twelve to fteen lengt-hs of wrought-iron pipe, K, of double or triple the ordinary thickness, forming, when connected, a length of not less than one hundred feet, are connected at their ends by rereturn-bends L, and the connected pipe is provided at one end with an inlet-pipe, M, and at the other end with an outlet-pipe, N, which inlet and' outlet pipes M N are only one-third the diameter of the super-heatingpipe K.

The parts of the superheater that are to be subjected v to incandescence are wrapped in sheets Zof asbestus paper, coated inside and outside with plumbago and clay paste, and secured in place by strong wire a.

The return-bends L at the ends of thepipes K never become red-hot, and are thus not liable to be injured.

cast or wrought iron covers R, which are perforated, one for the passage of the inlet-pipe M, and the other for the passage of the outletpipe N.

claim as new and desire to secure by Letters Patent- 1. The combination of the superheatingpipes K, the covering Z, secured around said pipes collectively, and the retort C, having thevshield of fire-brick I and iire-clay J in its bottom, substantially as shown and described. 2. In a steam-superheater, the combination, with the retort C and the pipes K, of the pieces I of fire-brick and the pulverized fireclay J, substantially as herein shown and described, whereby the superhcatingpipes are kept out of contact with the reto/rt, as set forth. Witnesses: MAGNUS GROSS.

JAMES T. GRAHAM, C. SEDGWIOK.

The ends of the retort C are closed by flat pieces, I, of chamotte or fire-brick, at equal Having thus fully described my invention, I 4

IOC 

